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Question 5 - Show sin-1 12/13 + cos-1 4/5 + tan-1 63/16 = pi
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prove that sin theta ( 1 + cot theta) + cos theta ( 1 + cot theta
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Example 12 : Prove that sin thita -cos thita +1/sin thita +cos thita -1.. cls 10 maths by akib khan
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